Srichan, R., B. Thaweboon, S. Thaweboon, and S. Mala. “Antimicrobial activity of neem toothpaste against caries-associated microorganisms”. Mahidol Dental Journal, vol. 41, no. 3, Nov. 2021, pp. 213-8, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/252161.